But then... I just remembered that in the iPad settIngs panel that swipes up from the bottom, I had the mute setting on. Turning it off allowed the iGigBook metronome sound to play.

The interesting thing is that all other apps still play their sound when mute is on. Normally mute just affects notification sounds. So I would think for consistency, iGigBook should also play its sound even when system mute is on. After all, it has its own mute switch in the app.

TonyMountifield wrote:Was certainly worth a try, but still the same...

But then... I just remembered that in the iPad settIngs panel that swipes up from the bottom, I had the mute setting on. Turning it off allowed the iGigBook metronome sound to play.

The interesting thing is that all other apps still play their sound when mute is on. Normally mute just affects notification sounds. So I would think for consistency, iGigBook should also play its sound even when system mute is on. After all, it has its own mute switch in the app.

According to Apple's documentation that mute button from the pull up Control Center should:

Quickly mute a song, movie, and more with a swipe and a tap

As far as the metronome in iGigBook is concerned, this would be the correct behavior despite what happens in other apps. The metronome shouldn't play it's sound when the system mute is on. The metronome mute switch as with all of the settings of the metronome can be assigned to an individual page which means on one page it can be on and on another page it can be off.

That's interesting, because I always turn on mute when I go to bed, and often forget to turn it off again in the morning, sometimes for several days. Even when I have left mute on, I still get audio from Youtube, BBC videos, iReal, OnSong, Virtuoso Piano, and even Apple's own built-in music player (I've just checked). Anything, it would seem, where I've specifically requested the operation producing the sound.

The only sounds that system mute seems to affect (apart from iGigBook) are notification sounds from Mail, Twitter, Facebook, Word With Friends, Skype, and so on. So I assumed that was designed behaviour. Maybe the Apple documentation is no longer accurate (it does happen!).

Anyway, at least I know why, although it would be VERY nice, particularly in a gig setting, to be able to use the iGigBook metronome without also having to have system notification sounds un-muted. Hope you might consider this!